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/**
* Test that CollectionCloner completes without error when a collection is dropped during cloning,
* specifically when that sync source is in 4.2.
*/
load("jstests/libs/logv2_helpers.js");
(function() {
"use strict";
load("jstests/libs/fail_point_util.js");
load('jstests/replsets/libs/two_phase_drops.js');
load("jstests/libs/uuid_util.js");
// Set up replica set with two nodes. We will add a third and force it to sync from the secondary.
const testName = "initial_sync_drop_against_last_stable";
const dbName = testName;
const replTest = new ReplSetTest({
name: testName,
nodes: [
{}, /* primary */
{rsConfig: {priority: 0, votes: 0}, binVersion: "last-stable"}, /* sync source */
{rsConfig: {priority: 0, votes: 0}} /* initial syncing node */
]
});
replTest.startSet();
replTest.initiate();
const collName = "testcoll";
const primary = replTest.getPrimary();
const primaryDB = primary.getDB(dbName);
const primaryColl = primaryDB[collName];
const nss = primaryColl.getFullName();
// The sync source.
const syncSource = replTest.getSecondary();
// The initial syncing node. Places in the test that refer to 'the secondary' refer to this node.
let secondary = replTest.getSecondaries()[1];
assert.neq(syncSource, secondary, "initial syncing node should be the third in the set");
let secondaryDB = secondary.getDB(dbName);
let secondaryColl = secondaryDB[collName];
// This function adds data to the collection, restarts the secondary node with the given
// parameters and setting the given failpoint, waits for the failpoint to be hit,
// drops the collection, then disables the failpoint. It then optionally waits for the
// expectedLog message and waits for the secondary to complete initial sync, then ensures
// the collection on the secondary is empty.
function setupTest({failPoint, extraFailPointData, secondaryStartupParams}) {
jsTestLog("Writing data to collection.");
assert.commandWorked(primaryColl.insert([{_id: 1}, {_id: 2}]));
const data = Object.merge(extraFailPointData || {}, {nss: nss});
jsTestLog("Restarting secondary with failPoint " + failPoint + " set for " + nss);
secondaryStartupParams = secondaryStartupParams || {};
secondaryStartupParams['failpoint.' + failPoint] = tojson({mode: 'alwaysOn', data: data});
// Force the initial syncing node to sync against the 4.2 secondary.
secondaryStartupParams['failpoint.forceSyncSourceCandidate'] =
tojson({mode: 'alwaysOn', data: {hostAndPort: syncSource.host}});
// Skip clearing initial sync progress after a successful initial sync attempt so that we
// can check initialSyncStatus fields after initial sync is complete.
secondaryStartupParams['failpoint.skipClearInitialSyncState'] = tojson({mode: 'alwaysOn'});
secondaryStartupParams['numInitialSyncAttempts'] = 1;
secondary =
replTest.restart(secondary, {startClean: true, setParameter: secondaryStartupParams});
secondaryDB = secondary.getDB(dbName);
secondaryColl = secondaryDB[collName];
jsTestLog("Waiting for secondary to reach failPoint " + failPoint);
assert.commandWorked(secondary.adminCommand({
waitForFailPoint: failPoint,
timesEntered: 1,
maxTimeMS: kDefaultWaitForFailPointTimeout
}));
// Restarting the secondary may have resulted in an election. Wait until the system
// stabilizes and reaches RS_STARTUP2 state.
replTest.getPrimary();
replTest.waitForState(secondary, ReplSetTest.State.STARTUP_2);
}
function finishTest({failPoint, expectedLog, expectedLogId, waitForDrop, createNew}) {
// Get the uuid for use in checking the log line.
let uuid = getUUIDFromListCollections(primaryDB, collName);
jsTestLog("Dropping collection on primary: " + primaryColl.getFullName());
assert(primaryColl.drop());
replTest.awaitReplication(null, null, [syncSource]);
if (waitForDrop) {
jsTestLog("Waiting for drop to commit on primary");
TwoPhaseDropCollectionTest.waitForDropToComplete(primaryDB, collName);
}
if (createNew) {
jsTestLog("Creating a new collection with the same name: " + primaryColl.getFullName());
assert.commandWorked(primaryColl.insert({_id: "not the same collection"}));
}
jsTestLog("Allowing secondary to continue.");
assert.commandWorked(secondary.adminCommand({configureFailPoint: failPoint, mode: 'off'}));
if (isJsonLog(primaryColl.getMongo())) {
if (expectedLogId) {
let attrValues = {
"ns": nss,
"uuid": function(attr) {
return BinData(parseInt(attr.uuid.$binary.subType), attr.uuid.$binary.base64)
.toString() === uuid.toString();
}
};
checkLog.containsJson(secondary, expectedLogId, attrValues);
}
} else {
if (expectedLog) {
expectedLog = eval(expectedLog);
jsTestLog(expectedLog);
checkLog.contains(secondary, expectedLog);
}
}
jsTestLog("Waiting for initial sync to complete.");
replTest.waitForState(secondary, ReplSetTest.State.SECONDARY);
let res = assert.commandWorked(secondary.adminCommand({replSetGetStatus: 1}));
assert.eq(0, res.initialSyncStatus.failedInitialSyncAttempts);
if (createNew) {
assert.eq([{_id: "not the same collection"}], secondaryColl.find().toArray());
assert(primaryColl.drop());
} else {
assert.eq(0, secondaryColl.find().itcount());
}
replTest.checkReplicatedDataHashes();
}
function runDropTest(params) {
setupTest(params);
finishTest(params);
}
jsTestLog("[1] Testing dropping between listIndexes and find.");
runDropTest({
failPoint: "hangBeforeClonerStage",
extraFailPointData: {cloner: "CollectionCloner", stage: "query"}
});
jsTestLog(
"[2] Testing dropping between listIndexes and find, with new same-name collection created.");
runDropTest({
failPoint: "hangBeforeClonerStage",
extraFailPointData: {cloner: "CollectionCloner", stage: "query"},
createNew: true
});
jsTestLog("[3] Testing committed drop between getMore calls.");
runDropTest({
failPoint: "initialSyncHangCollectionClonerAfterHandlingBatchResponse",
secondaryStartupParams: {collectionClonerBatchSize: 1},
waitForDrop: true,
expectedLogId: 21132,
expectedLog:
"`CollectionCloner ns: '${nss}' uuid: ${uuid} stopped because collection was dropped on source.`"
});
jsTestLog(
"[4] Testing committed drop with new same-name collection created, between getMore calls.");
runDropTest({
failPoint: "initialSyncHangCollectionClonerAfterHandlingBatchResponse",
secondaryStartupParams: {collectionClonerBatchSize: 1},
waitForDrop: true,
expectedLogId: 21132,
expectedLog:
"`CollectionCloner ns: '${nss}' uuid: ${uuid} stopped because collection was dropped on source.`",
createNew: true
});
replTest.stopSet();
})();
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